Chemical Properties of Carboxylic Acids

Among the following acids which has the lowest  ${\mathrm{pK}}_{\mathrm{a}}$ value?

A liquid was mixed with ethanol and a drop of concentrated H₂SO₄ was added. A compound with a fruity smell was formed. The liquid was:

A liquid was mixed with ethanol and a drop of concentrated H₂SO₄ was added. A compound with a fruity smell was formed. The liquid was:

Which amongst the following compounds has the highest acid strength?

Given below are two statements, one is labelled as Assertion $\mathbf{A}$ and the other is labelled as Reason $\mathbf{R}$.
Assertion $\mathbf{A}$: A solution of the product obtained by heating a mole of glycine with a mole of chlorine in presence of red phosphorous generates chiral carbon atom.
Reason $\mathbf{R}$: A molecule with $2$ chiral carbons is always optically active.
In the light of above statements, chose the correct answer from the options given below: 

Match List-I with .

Choose the correct answer from the options given below:

The major product formed in the following reaction is

Compare the acid strength of:

$$\begin{gathered} 1.\mathrm{o}-\mathrm{flourobenzoic} \mathrm{acid} \\ 2.\mathrm{o}-\mathrm{chlorobenzoic} \mathrm{acid} \\ 3.\mathrm{o}-\mathrm{bromobenzoic} \mathrm{acid} \\ 4.\mathrm{o}-\mathrm{iodobenzoic} \mathrm{acid} \end{gathered}$$

Find the correct order of acidity of the following compounds :

Match the following

Identify the products.

${\mathrm{CH}}_3\mathrm{COOH}\stackrel{\mathrm{Red} \mathrm{P}/{\mathrm{Cl}}_2}{\to }$

Which of the following acids has least acidic strength ?

Ethanoic acid undergoes Hell-Volhard Zelinsky reaction but Methanoic acid does not, because of

The reagent that can reduce the carboxylic acid group to the corresponding alcohol is

The major product of the following reaction is

The major product of the following reactions is

An aryl carboxylic acid on treatment with sodium hydrogen carbonate liberates a gaseous molecule. Identify the gas molecule liberated.